JP2750852B2 - Automatic threading device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for facilitating stringing with a binder or the like. 2. Description of the Related Art When stringing a binder or the like, a string brake device, a slack removing rod, a string guide rod, or the like is passed through.
Eventually, it is necessary to pass through the threaded hole of the needle, the procedure is complicated, and since this work must be performed below the binder conveyance guide plate, it has been troublesome for the operator. is there. Conventional techniques for simplifying the threading operation are disclosed in JP-A-61-127412, JP-A-59-33234, and JP-A-61-6.
No. 0413 is known. However, in JP-A-61-127412 and JP-A-61-60413, the string brake device and the slack take-up rod need to be separately threaded by the operator, and the string is threaded by the exhaust of the engine. So do
There were inconveniences such as the need for subtle technical skills. Further, in Japanese Utility Model Publication No. 59-33234, it is necessary to tie a tying string and a tying string at the time of threading, and even if the inside of the guide pipe can be passed by the guiding string, However, there was a problem that it was not possible to pass through the hole of the needle. [0003] The present invention particularly relates to an arrangement position of an automatic stringing device. In the two conventional stringing devices, an operator is most difficult to perform a stringing operation. It is located below the transport guide plate,
It was necessary to tie the guide string and the tying string, and the operator had to perform the stringing of the needle through the string hole, which was troublesome. The automatic string passing device of the present invention includes a flexible rod feeding device P, a string passing flexible rod 4, a guide pipe 1
And the like. Then, the automatic string passing device is arranged on the side of the string case on the discharge side of the united grain culm, and since there is no transport guide plate in this portion, the engagement state between the united string and the string passing flexible rod is changed. The structure is such that the operator can grasp the tying strap with the right hand and operate it while holding the stringing operation handle with one hand. [0004] The object of the present invention is as described above, and a configuration for achieving the object will be described below.
An end portion of the binding string M is pulled out from the binding string tube A disposed in the string case 32, and the end of the binding string M is pulled out by operating the string passing operation handle 3 provided in the flexible rod feeding device P. It is configured to be hooked to the tip of the through flexible rod 4, and the string brake device 10 and the slack removing rod 7 through which the string passing flexible rod 4 and the hooked binding string M pass integrally are allowed. Provided between the flexible rod feeding device P and the needle 18, the tying string M and the string passing flexible rod 4 are connected to the string brake device 10 and the slack removing rod 7.
, And through the string hole 18a of the needle 18 to automatically perform the stringing operation. When the stringing operation handle 3 is operated outside the transport guide plate C in the horizontal direction in plan view, It is arranged inside the outer end of the handle 13. The objects and constitutions of the present invention are as described above. Next, the constitution and operation of the embodiment shown in the accompanying drawings will be described. FIG. 1 is a plan view of a binder provided with the automatic threading device of the present invention, FIG. 2 is a plan view of the same, FIG. 3 is a plan view of the automatic threading device as a main part of the present invention in a string setting state, and FIG. FIG. 5 is a plan view showing a state of the string in the tying device section, in a state where the stringing is completed. 1 and 2, the entire configuration will be described. The binder has a raising device B disposed at the front end, and a transport guide plate C is provided upright at the rear portion of the raising device B to guide the cut culm to the right side in the traveling direction. The binding device is disposed below the raising device B and the transport guide plate C, and the needle 18 and the binding clutch door 28 are disposed near the transport path. The string case 32 is disposed above the transmission device between the engine E and the transport guide plate C, and the binding string tube A is placed on the string case 32. The end of the tying string M is taken out from the tying string tube A and threaded to the lace hole of the needle 18. [0007] The automatic threading device of the present invention comprises an operating handle 1
3 is fixed on the right frame, which is the united grain release side. The storage pipe 2 is arranged along the right side of the operation handle 13, and the rear part of the flexible rod 4 is passed through the storage pipe 2. The stringing operation handle 3 of the flexible rod feeding device P is disposed outside the outer end of the transport guide plate C on the release side of the united grain in the left-right direction in plan view. 2, that is, the operation handle 3 is arranged within the range of L in FIG. 2, and the position of the operation handle 3 can be recognized without being covered by the transport guide plate C. , So as not to protrude beyond the operation handle 13. In addition, the stringing operation handle 3, the string brake device 10, the slack removing rod 7, and the like of the flexible rod feeding device P are disposed below not covered by the transport guide plate C, and a guide pipe is provided below the transport guide plate C. The guide pipe 1 guides the flexible rod 4 and the binding string M through the guide pipe 1 up to the vicinity of the tip of the needle 18 protruding from the grain culm transport passage. 29 is a discharge rod of the binding device. Next, based on FIGS. 3, 4 and 5,
The configuration of the main part of the automatic threading device of the present invention will be described. A support plate 14 is fixed on the operation handle 13, and a recoil device 24 is arranged on a lower surface of the support plate 14. A recoil wire 3a for operating the recoil device 24 projects in a direction perpendicular to the operation handle 13. A string passing operation handle 3 is fixed to an end of the recoil wire 3a. By pulling the stringing operation handle 3 in a direction perpendicular to the operation handle 13, the recoil shaft 1
5 rotates and the flexible rod feeding ring 6 is driven. When the operator releases the stringing operation handle 3, the recoil wire 3a and the stringing operation handle 3 are rewound by the rewinding force of the recoil spring in the recoil device 24. The string passing flexible rod 4 is extended by the rotation of the flexible rod extending ring 6. Flexible rod extension ring 6
A guide roller 8 is arranged in the vicinity of the circumference of the flexible rod, and the flexible rod feeding ring 6 and the guide roller 8 both engage the string passing flexible rod 4 to feed it out. In the present embodiment, the threading flexible rod 4 has a configuration in which a screw projection is wound around the outer periphery of the wire, and the tooth portion of the flexible rod feeding ring 6 similarly formed in a gear shape meshes with the screw projection. , So that it can be paid out. The string passing flexible rod 4 has a function of being hooked and pulled out from the storage pipe 2 toward the guide pipe 1 by rotation of the flexible rod feeding ring 6, and is arranged in a meandering manner. In order to pass through the inside of the guide pipe 1 while bending, it is necessary to have flexibility. Therefore, it is sufficient that the string passing flexible rod 4 is a rod having a rigidity not defeated by the resistance of the binding string M and a property of bending along the bending of the guide pipe 1. In this embodiment, screw projections are provided on the outer periphery of the wire. However, a rod made of synthetic resin may be fed out by friction, or a rack may be provided with teeth. Also, the flexible rod feeding ring 6 may be a gear or friction body made of synthetic resin. The storage pipe 2 is divided into front and rear portions at an engagement portion with the flexible rod feeding ring 6, and the rear storage pipe 2b functions to completely store the flexible rod 4 through the string. In the front storage pipe 2a, a set groove 2c for setting the binding string M and the string locking projection 5 is formed in a notched groove shape. The setting state of the binding string M in the setting groove 2c is configured as shown in FIG. The string locking projection 5 fixed to the tip of the string passing flexible rod 4 is in a state where the string passing flexible rod 4 is rewound by the recoil device 24 in FIG.
As shown in the figure, it is stored in the front storage pipe 2a behind the set groove 2c. A string guide plate 23 is arranged at the front end of the support plate 14, and guides the binding string M drawn out of the binding string tube A of the string case 32 by the string guide plate 23.
Is inserted into the guide pipe 1 through the guide hole 23a of the string guide plate 23. The guide hole 23a is provided with an arc-shaped guide surface in the pull-out direction so as not to catch the string. Before the strap M is passed through the strap hole 18a of the needle 18, it is necessary to pass through the strap brake device 10 and the slack removing rod 7 in order to eliminate a binding error due to slack. It is configured so that it can be automatically performed by pulling the through operation handle 3. That is, the string brake device 10 and the brake roller 12 are arranged at a position just before the string guide plate 23 exits the guide hole 23a in a state of being pressed by the braking spring 19.
When the strap M is pressed by the strap brake device 10 and the brake roller 12, a friction braking force is applied. Reference numeral 20 denotes a braking force adjusting handle for the braking spring 19. Next, the configuration of the slack removing rod 7 will be described. The slack removing rod 7 has a configuration in which the front and rear ends of the tying string M are locked, and the central portion thereof is pulled by a spring-shaped ring-shaped rod. Guide pipe 1b and front guide pipe 1a
Then, the tying string M is taken out from the dividing portion in the direction of the slack removing rod 7. Therefore, the slack removing rod 7
It is necessary to arrange a ring portion at a position further away from the guide pipe 1, and it is difficult to pass the string through the slack removing rod 7 and the flexible rod 4. Therefore, when stringing is performed, the slack removing rod 7 must be disposed concentrically with the guide pipe 1. Further, the string passing flexible rod 4 and the string locking projection 5 at the end thereof are connected to the string brake device 10 and the brake roller 1.
It is necessary to pass between the two, but since it is impossible to pass in the braking state, there is provided a device for releasing the string brake device 10 at the time of stringing.
At the same time when the string brake device 10 is released, a device that rotates to the concentric position of the guide pipe 1 when the slack removing rod 7 is also threaded is arranged. That is, the stringing arrangement lever 9 performs this function. The stringing arrangement lever 9 is fixed to an arm 16 pivotally supported by the recoil shaft 15. By rotating the stringing arrangement lever 9, the arm 16 rotates and the set engaged with the arm 16. The arm 17 is rotated. The set arm 17 is fixed to a brake roller shaft 22 of the brake roller 12, and a brake release cam 21 is fixed to the upper end of the brake roller shaft 22. It moves by rotation and opens the upper end of the string brake device 10 whose lower end is pivotally supported. Then, the space in which the string brake device 10 is opened by the brake release cam 21 allows the flexible rod 4 to pass through the string locking projection 5 and the string. At the same time, a winding spring portion forming the base of the slack removing rod 7 is fixed to the brake roller shaft 22,
The slack removing rod 7 is turned by turning the string passing arrangement lever 9.
As shown in FIG. 4, it is rotated to a position concentric with the guide pipe 1. The slack removing rod stopper 11 is moved to the side of the guide pipe 1 on the opposite side of the slack removing rod 7 so that the slack removing rod 7 does not overshoot the concentric position of the guide pipe 1 by the rotation of the string passing lever 9. It is arranged in. With this configuration, when stringing is performed, first, the stringing arrangement lever 9 is turned to the stringing state as shown in FIG. 4, and the binding string M is set at the position of the set groove 2c in FIG. By pulling the stringing operation handle 3 in this state, the stringing flexible rod 4 and the string locking projection 5 are pushed out from the storage pipe 2, and the binding string M is hooked on the tip, and the string brake device 10 in the opened state is pulled. , Passes through the slack removing rod 7 arranged at a concentric position, is guided in the guide pipe 1, exits in a direction substantially perpendicular to the tip of the needle 18, and
The projecting state of the flexible rod 4 is stopped by the stopper 4a at a position passing through the inside 8a. The operator takes out the tying string M that has passed through the string hole 18a,
The hook is set in the state shown in FIG. FIG. 5 is a plan view of the tying device, in which the tying string M is engaged with a positioning piece 25 fixed to the right end of the knot frame 27 to accurately determine the position. The release rod 29 is hooked and stopped on the locking piece 26 provided on the crank arm portion of the discharge rod 29. In this state, when the binding clutch door 28 is pulled and the clutch is engaged and the binding operation is performed in an empty state, the binding strap M
However, the tying string M is guided to the knot building 30 and the knot holder 31 in the knot frame 27 to create a state held by the knot holder 31. Thereafter, the end of the tying string M cut by the string cutting blade is dragged by the rotation of the release rod 29, so that if it is removed from the locking piece 26 and removed, the threading operation is completed. 33 is a packer. As described above, the present invention has the following advantages. First, since the operation handle 3 of the automatic threading device and the operation handle 3 according to the present invention are disposed on the discharge side of the handle base outside the conveyance guide plate C in the left-right direction in plan view, the operation handle 3 is Without being covered by C, the position of the operation handle 3 was easily understood, and the operation of the operation handle 3 became easy. Secondly, the operation handle 3 is in plan view.
3 is located inside the outer end of the operating handle 3
It does not protrude, and the operating handle 3 does not get caught during traveling. Third, the automatic stringing device is disposed on the side of the string case on the discharge side of the united grain, and since there is no transport guide plate in this portion, the engagement state between the united string and the stringing flexible rod is changed. Therefore, the operation can be reliably performed at a position that is easy for the operator to see, and the operation of the operation handle 3 and the processing of the tip of the binding strap after the strapping can be easily performed alone by the side of the machine body.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view of a binder provided with an automatic threading device of the present invention. FIG. 2 is a plan view of the same. FIG. 3 is a plan view in a string setting state of the automatic threading device which is a main part of the present invention. FIG. 4 is a plan view showing a state in which stringing is completed. FIG. 5 is a plan view showing a state of a string in the binding device unit. [Description of Signs] A Binding cord tube M Binding cord C Transport guide plate P Flexible rod feeding device 1 Guide pipe 2a Front storage pipe 2b Rear storage pipe 2c Set groove 3 String passing operation handle 4 String passing flexible rod 5 String Locking protrusion 6 Flexible rod feeding ring 7 Slack removing rod 7 8 Guide roller 9 String passing arrangement lever 13 Operating handle 14 Support plate 24 Recoil device 32 String case

Claims (1)

(57) [Claims] An end of the binding string M is pulled out from the binding string tube A disposed in the string case 32, and the end of the binding string M is pulled out by operating the string passing operation handle 3 provided in the flexible rod feeding device P. The string brake device 10 and the slack removing rod 7, which are configured to be hooked to the tip of the through flexible rod 4, and through which the string passing flexible rod 4 and the hooked binding string M pass integrally,
Provided between the flexible rod feeding device P and the needle 18, the tying string M and the string passing flexible rod 4 pass through the string brake device 10 and the slack removing rod 7, and further pass through the string hole 18 a of the needle 18. The stringing operation handle 3 is arranged so as to be more automatically threaded, and the stringing operation handle 3 is disposed outside the transport guide plate C and inside the outer end of the operation handle 13 in the horizontal direction in plan view. Automatic stringing device.